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High efficiency, high temperature power conversion needs the Brayton cycle. 2. The gas cycles back through three successive Compressors, cooled by fluid that transfers rejected heat externally. 3. The Recuperator transfers some energy from the compression cycle back to the expansion cycle. 4. The Generators produce electricity. Brayton cycle has efficiency of 45% at 700°C, over 50% at 950°C. 1. Helium, CO 2 or nitrogen gas is successively heated by a 700°C molten salt heat exchanger as it passes through high, medium, and low pressure Turbines.

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Brayton cycle power conversion merits ARPA-E funding. $500 million invested helps return over $23 billion/year. Building the first-of-a-kind Brayton power conversion system will be a breakthrough. Brayton conversion benefits many new energy technologies. It is a 'disruptive new approach to…thermodynamic power cycles' requested in the RFI. It is a 'Revolutionary approach for overcoming…"choke points" within a technology value chain', requested in the RFI.